I use Ember Data along with Ember. Ember Data is my model layer. I should have made that more clear. As for FastBoot, correct me if I'm wrong, but right now it

I use Ember Data along with Ember. Ember Data is my model layer. I should have made that more clear. As for FastBoot, correct me if I'm wrong, but right now it supports rendering static pages for SEO. This is not useful for business apps. Rehydration on the client-side (what you seem to be referring to) is still being worked on. But it does not replace the server-side application. At any rate, eventually someone will bring together the best of server and client technologies in one full-stack package. With all due respect to what's out there now, I haven't seen anything approaching the elegance of Ember and Django.